US Bridges

Ridgeline Drive over Sand Canyon Channel

Fair

Orange County, California · 300 S/O University Drive · Structure no. 55C0481

Built
1976
49 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
64 ft
2 main spans
Daily traffic
12,700
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ridgeline Drive over Sand Canyon Channel is a steel culvert carrying Ridgeline Drive over Sand Canyon Channel in Orange County, California. It was built in 1976, so it is 49 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 12,700 vehicles a day, roughly 7% of them trucks, projected to reach 13,568 by 2046. The structure is 64 ft (19.5 m) long and 106 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRidgeline Drive
CrossesSand Canyon Channel
Location300 S/O University Drive
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.65769, -117.80699
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span32 ft (9.8 m)
Deck width106 ft (32.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,700 (2018)
Projected traffic13,568 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ridgeline Drive over Sand Canyon Channel built?

It was built in 1976, making it 49 years old in 2025.

What condition is Ridgeline Drive over Sand Canyon Channel in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Ridgeline Drive over Sand Canyon Channel carry?

About 12,700 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is Ridgeline Drive over Sand Canyon Channel?

The structure is 64 ft (19.5 m) long with a longest span of 32 ft (9.8 m) and a deck 106 ft wide.

Who owns Ridgeline Drive over Sand Canyon Channel?

It is owned by the City or Municipal Highway Agency.